Additionally, in the embodiments of FIG. 6 and FIG. 7, the Bluetooth host device 110 only needs to negotiate the parameters of key generation with a single member device in the Bluetooth device set 102 (i.e., the first member device 120), and does not need to negotiate the parameters of key generation with other member devices of the Bluetooth device set 102 (e.g., the second member device 130 and the third member device 140). In other words, by adopting the method of FIG. 6 or FIG. 7, it can also greatly reduce the time and computing loading of the Bluetooth host device 110 required for negotiating the key parameters with other member devices and required for generating cypher keys.
Apparently, the method of above FIG. 6 and FIG. 7 can effectively simplify the Bluetooth pairing procedure between the Bluetooth host device 110 and respective member device of the Bluetooth device set 102, thereby significantly reduce the required time for completing the pairing procedure between the Bluetooth host device 110 and the Bluetooth device set 102.
Furthermore, the operation of filtering device items to be shown in the candidate device list conducted by the processing circuit 117 in the aforementioned operation 606 can simplify the complexity of user's manipulation during the Bluetooth pairing procedure, and also reduce the possibility of user's erroneous manipulation.
